ALARM #2
What This Code Means
Battery state of charge (SoC) is low (less than 20%); Equipment has been turned off; Master phase has been deactivated; Immediate system shutdown; Machine shuts down suddenly; System loses communication with one of the inverters (L1, L2, or L3); Error in one of the inverters; Error in the inverters due to installation or internal problem; Overvoltage at the output; System communication failed; Error LEDs are on (red); Battery error persists after restarting; Battery state of charge is low (30%, 25%, or 21%); Operating mode will shut down when battery charge reaches 20%; The equipment has shut down; One of the devices assumed the master state; Firmware incompatibility; Equipment shutdown
Possible Causes
- •Battery energy is depleted
- •Emergency mushroom is pressed
- •Unsafe condition (such as a very high overload)
- •System security reasons
- •Repeated shutdown of the equipment
- •False contacts in the DC distribution of the inverter (due to the battery switch or incorrect tightening torques on the terminals)
- •Poor connection of communication cables between the inverters and the L1 inverter to the Cerbo GX (due to a worn or broken RJ45 connector)
- •Inverter is defective and has stopped working due to internal causes
- •Broken maintenance disconnector
- •Inverter stopped working
- •Problem with the electrical installation carried out on the load
- •Problem in the Cerbo GX
- •Problem in one of the inverters
- •Defective battery
- •Deterioration of battery cells
- •Problem in communication in battery modules
- •Low battery state of charge
- •One of the phases has been disabled
- •The original master failed
- •The firmware of one of the connected devices is not up-to-date enough to work with this device
Suggested Actions
- 1Prompt loading (charging) of the batteries
- 2Perform battery maintenance
- 3Disengage the emergency mushroom
- 4Reset the system
- 5Perform a system shutdown according to the manual (do not turn the batteries off)
- 6Check that the communication between the inverters is correct
- 7Check that the RJ45 connectors are in good condition and tight
- 8Check that the voltage between the DC terminals of the input of each of the inverters is correct
- 9Replace the maintenance disconnector
- 10Turn the batteries off and restart the equipment
- 11Disconnect the load at the power output
- 12Run any operating mode
- 13Verify by means of a voltmeter that the RMS voltage at the output is higher than adequate
- 14Connect the load at the output and verify if there is an overvoltage
- 15Check that the communication between the inverters and between the Cerbo GX and the master inverter is correct
- 16Check that the batteries are working properly
- 17Identify which battery is defective
- 18Charge the battery as soon as possible
Related Hipower Systems Fault Codes
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